Underdog T.J. Dillashaw beat Renan Barao to win the title in a huge upset at UFC 173

UFC 173: T.J. Dillashaw stuns Renan Barao

According to GMA, T.J. Dillashaw was such an underdog going into his UFC 173 main event against bantamweight champion Renan Barao, he was more or less an afterthought during fight week.But everyone who left the MGM Grand Garden Arena on Saturday night (Sunday, PHL